12943830 has 32 divisors (see below), whose sum is σ = 31267584. Its totient is φ = 3429216.

The previous prime is 12943829. The next prime is 12943867. The reversal of 12943830 is 3834921.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3567 + ... + 6213.

It is an arithmetic number, because the mean of its divisors is an integer number (977112).

Almost surely, 2^12943830 is an apocalyptic number.

12943830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12943830 is an abundant number, since it is smaller than the sum of its proper divisors (18323754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12943830 is a wasteful number, since it uses less digits than its factorization.

12943830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2820.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 12943830 is about 3597.7534657061. The cubic root of 12943830 is about 234.7943273658.

The spelling of 12943830 in words is "twelve million, nine hundred forty-three thousand, eight hundred thirty".